class_docstr: Base class for estimators
  
  Ensure proper initialization of Mixins.
code: def __init__(self):
      self.__static__ = list()
      self._static_fit_params = dict()
      self._backend = None
  
imports: from ..parallel import Layer, make_group
  from ..parallel.base import ParamMixin
  from ..parallel.wrapper import EstimatorMixin
  from ..parallel._base_functions import check_stack
  from ..externals.sklearn.base import BaseEstimator
  from ..externals.sklearn.base import clone
label_desc: Use image node_id 1 to create a new BaseEstimator object from inherited base classes: EstimatorMixin, ParamMixin, _BaseEstimator with example: obj = BaseEstimator()